单词：nereis
音标：['niriis] ；
n. [动] 沙蚕属
n. A Nereid. See Nereid.
n. A genus, including numerous species, of marine chaetopod
annelids, having a well-formed head, with two pairs of eyes, antennae,
four pairs of tentacles, and a protrusile pharynx, armed with a pair of
hooked jaws.
n. A genus, including numerous species, of marine chaetopod
annelids, having a well-formed head, with two pairs of eyes, antennae,
four pairs of tentacles, and a protrusile pharynx, armed with a pair of
hooked jaws.
nereis的用法和样例：
例句
用作名词(n.)
- Describe the excretory system of the genus Nereis briefly.请简述沙蚕属的排泄系统。